Type UT58


Application & Characteristics
Phonographic needles.

Chemical Composition (%)
To Uniform Tubes Specifications.

Physical Properties
Melting Range (°F)	950 – 1150
Density (lbs/in³) 68F	0.100
Thermal Expansion (in/in °Fx10 to the power of -6)	14.0 (68-572F)
Electrical Resistivity (ohms/cir mil/ft.) 68F	34.0

Mechanical Properties – Temper = A
Tensile Strength (psi x 10³)	30
Yield Strength (psi x 10³)	14
Elongation ( % )	15
Hardness	60 (Brinell)

Mechanical Properties – Temper = H
Tensile Strength (psi x 10³)	45
Yield Strength (psi x 10³)	40
Elongation ( % )	8
Hardness	– (Brinell)

Mechanical Properties – Temper = HT
Tensile Strength (psi x 10³)	70
Yield Strength (psi x 10³)	63
Elongation ( % )	14
Hardness	150 (Brinell)